EVALUATION OF THE SUCCESS OF THE TOFU INDUSTRIAL WASTEWATER TREATMENT PLANT USING STRUCTURAL EQUATION MODELING

Abstract

This paper is a case study in Ledok Kulon Village, Bojonegoro Regency. Ledok Kulon Village is known as the center of the tofu industry in Bojonegoro Regency, Indonesia. The number of tofu industries in Ledok Kulon Village is 64 companies. The existence of the tofu industry is considered disturbing to the community because the wastewater produced by the tofu industry causes an unpleasant odor and many disease vectors, such as rats, flies, and other insects. Another problem is the pollution that occurs in the Bengawan Solo River, where this wastewater is disposed of. In 2018, a wastewater treatment plant (WWTP) was built by the Bojonegoro Regency Government at this location, but the above problems have not been resolved. Therefore, this research needs to be carried out to find facts about the factors that influence the successful management and sustainability of WWTP in Ledok Kulon Village using Structural Equation Modeling (SEM). SEM is a multivariate method for examining complex relationships between variables. In this study, there are three exogenous variables, namely technical (X1), institutional (X2), and community participation (X3), and two endogenous variables, namely WWTP management success (Y1) and WWTP sustainability (Y2). The results of the SEM analysis show that the three exogenous variables above have a significant and positive effect on WWTP management success (Y1). The WWTP management success (Y1) also has a significant and positive effect on WWTP sustainability (Y2).